Pencil-sharpener.



PATENTED MAR. 31, 1903.

F. H.- LIPPINGOTT.

PENCIL SHARPENER.

APPLICATION rum MAY 17, 1901.

NO MODEL.

UNITED STATES V PATENT Unmet.

FISHER H. LIPPINCOTT, OF PHILADELPHIA, PENNSYLVANIA.

PENCIL-SHARPENER.

SPECIFICATION forming part of Letters Patent No. 724,303, dated March31, 1903. Application filed May 17,1901. Serial No. 60,699- No modemject the provision of a device for pointing the lead of a pencil whichwhile being easily applied to any holder or recess shall be simple inconstruction and inexpensive to manufacture.

The above objects I attain as hereinafter,

set forth, reference being had to the accompanying drawings, in whichFigure 1 is an enlarged vertical sectional view of an ordinary indiarubber eraser holder, showing my improved sharpener as applied to thesame. Fig. 2 is a plan view of the sharpener. Fig. 3 is a transversesectionalview of the same on the line 3 3, Fig. 2. Fig. at is a sideview, and Fig. 5 is a plan view, of the blank from which the sharpeneris made.

In the above drawings, A is an ordinary cylindrical metallicrubber-eraser holder commonly applied to the ends of lead-pencils.Retained in the holder by means of the corrugations a is a piece ofrubber B, and a V- shaped pencil-sharpener C is placed within theholder, the edges resting upon the upper corrugations of the rubberholder. This sharpener is stamped out of sheet metal by appropriatemachinery, having in it a slot 0 with parallel sides and being of theappearance shown in Fig. 5. It is then bent into a V shape, as shown inFig. 3, the ends 0 c of the piece being bent back, so as to be in thepresent instance in the same plane, although it will be understood thatthis construction is not necessary to my invention. The edges of saidends are preferably cut in the arc of a circle, as illustrated in theplan View of Fig. 2.

Notches c c are formed in the edges of the sharpener, there being fourin the specimen shown. As the said sharpener is made so that thedistance between its edges is slightly greater than the interiordiameter of the rubber-holder, it is therefore retained in said holder.

In use the sharpener is placed, for example,

in a holder of the form illustrated, and a pencil requiring its leadpointed is inserted in the same, being given a rotary motion at the sametime that it is pressed inwardly.

The sharpener, owing to the springy nature of the material from which itis made, presses upon the sides of the holder, and is thus preventedfrom rotating as the pencil is turned. As the lead of the pencil ispointed the powdered plumbago-dust collects in the bottom of the holder,and after the sharpening is finished the holder may be turned upsidedown and the dust shaken out, it passing through the notches 0 cprovided for that purpose.

It will be understood that while I have shown my improved sharpener asapplied to a cylindrical pencil or rubber holderit may with equaladvantage be placed in any suitably-formed recess or convenient holderof any desired shape-as, for example, in a hole or recess in a desk ordrawer, drawingboard, 850.

I claim as my invention- 1. The combination of a holder having within ita substantially cylindrical cavity and a V-sh aped pencil-sharpenertherein, said sharpener having ends projecting at an angle to its sides,said ends being circular in outline and constructed to be retainedwithin the holder, substantially as described.

2. The combination of a holder, a pencilsharpener therein having itssides set at an angle to each other, a slot in said sharpener, the sidesof the same being parallel to each other, the ends of the sharpenerbearin g upon the sides of said holder and thereby retaining thesharpener within the same,and notches in said ends constructed to allowdust from sharpening a pencil to be removed from the holder,substantially as described.

3. The combination with a pencil-holder having a substantiallycylindrical cavity, of a pencil-sharpener having sides set at an angleto each other and projections extending at an angle from said sides,said projections being placed to engage the interior surface of thecavity in the holder, substantially as described.

4:. The combination of a holder and a penoil-sharpener having sideportions set at an angle to each other and constructed to fit name tothis specification in the presence of two subscribing witnesses.

FISHER II. LIPPINCOTT.

within said holder, said parts having in them a paral1e1-sided slot andbeing provided with end projections lying in substantially the sameplane With each other whereby the 5 sharpener is held in operativeposition Within "Witnesses:

the holder, substantially as described. WILLIAM E. BRADLEY, In testimonywhereof I have signed my JOs. H. KLEIN.

